Window-shade.



S. BERGER.

WINDOW SHADE.

APPLICATION FILED MAR. 14, ms.

Patented Aug. 27, 1918.

A TTORNEYJ I es as snvron BERGER, on NEW YORK, N. Y.

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WIND OW-SHADE.

Application filed March 14, 1918. Serial No. 222,330.

To all whom it may concern Be it known that I, SIMON Bnncnn, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in WVindow-Shades, of which the following is a specification.

My invention relates to a novel and improved construction of window shades, and more particularly to the connection of the window shade and the roller.

As is wellknown, window shades are provided with rollers which are usually placed at the top of the window, and upon which the shade is rolled or unrolled as it is raised or lowered. It has been customary l1eret0- fore to connect the top of the shade to the roller by a series of tacks or the like. This form of connection is relatively expensive and in addition it spoiled the shade, especially if it were made of a cheap and flimsy material. Besides, the shade tended to tear at the points where the nails or tacks were driven in if it were lowered too far, especially if it were made of cheap and flimsy material, as aforesaid.

According to my invention, the need of tacks, nails or similar securing means is obviated and the connection is provided in a very cheap and simple form and the danger of tearing on the point of connection is also obviated.

I have illustrated a preferred embodiment of my invention and the following description and drawing, in which:

Figure 1 is a front view,

Fig. 2 is a section on the line 22 of Fig. 1 looking in the direction of the arrow,

Fig. 3 is an enlarged perspective view, and

Fig. 4 is an enlarged cross sectional view showing the connection between the roller and the shade.

The roller 1 is provided with a pintle or shaft 3 which is mounted in suitable bearings at the top of the window, so that the roller can freely revolve as is well-known. The roller 1 is formed on its left hand side integral with the pulley-like member 2 so that a. groove is formed in which the endless cord at can fit.

After the roller 1 has been shaped, a wedge-shaped spline is cut out therefrom by means of suita le tools, so that the spline or holding member can he slid longitudinally to and fro in the wedge-shaped groove or notch formed in the roller 1 by the cutting out of the spline 5, but this spline cannot be moved radially with respect to shaft 3. A suitable tool for this purpose can be made of a steel blade, bent so as to assume the configuration of the spline, and which is moved parallel to the axis of the roller to cut out the spline.

The shade 6 having the customary wooden bottom piece 11 is fastened to the roller 1 by the connection shown particularly in Figs. 3 and 1. The spline 5, whose shape corresponds exactly in all respects to the wedge-shaped groove in the roller 1, since the cutting out of the spline produced this groove, is slid out of the roller 1. The spline is identical at all points thereof with the adjacent part of the wall of the groove in configuration, grain, texture or structure and all other physical characteristics. Then the top of the shade 6, which is made of any suitable fabric, is folded around three sides of the spline 5 and the end 7 is overlapped either in the direction of the spline 5, as shown in Fig. 4, or if desired, in the opposite direction, so that this end 7 will be exterior to the periphery of the roller 1, when the spline 5 has been slid into place.

As the spline 5 is slid into place the shade assumes the configuration shown in Fig. 4C and it is tightly wedged into place between the spline 5 and the groove of the roller 1.

This tight fit is further secured by the cloubling over at the end 7. The fact that the spline has been cut from the roller itself makes it fit very tightly and enables the ready insertion and removal thereof.

The projecting end 7 is bent against the periphery of the roller 1 when the shade has been rolled around it several times and all danger of tearing or loosening the shade is obviated.

After the shade and the spline 5 have been secured into position the metal cap 8 is slid on and secured in place by any suitable means.

For raising and lowering the shade, I prefer to provide a small pulley 9 at the bottom of the window. This is formed integral with a pin or nail 15 so that it can be driven into place as shown in Fig. 1. A spring 10 having a slot 12 is secured by means of a spring 14:, and the nail 15 is passed through the slot 12 as it is driven into position so that the spring 10 presses against the pulley 9 and forms a frictional resistance or brake which tends to suppress the movement of the cord at and hence the raising or lowering of the shade 6.

In this manner, by pulling the endless cord 4, the shade can be lowered or raised to any desired extent and is held in its adjusted position by means of the spring 10 and pulley 9.

I have shown a preferred embodiment of my invention but I do not Wish to be limited to its details as numerous changes or omissions can. be made Without departing from the spirit otmy invention.

I claim The method of making a shade fastening means for a shade roller which consists in removing bodily from the roller a dove tail spline from end to end of said roller, said spline being Widest at the part nearest the axis of the roller, whereby said spline serves as a key to'clamp the end of the shade in said grooye and hold it Without other fastening means.

In testimony whereof I hereunto afliximy signature.

SIMON BERGER.

Copies of this patent may berobtainedfor five cents each, by addressing the Commissioners of Patents,

' Washington, D. G. 

